Finding the Fourth Proportional to 1,172,888.68, 1,618,596.26 and 636,348.52
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Solution
The fourth proportional to 1,172,888.68, 1,618,596.26 and 636,348.52 is: 878,166.32
Step by Step Solution
- Step 1: Write the proportion equation
1,172,888.68 : 1,618,596.26 = 636,348.52 : x - Step 2: Convert to fraction form
1,172,888.68/1,618,596.26 = 636,348.52/x - Step 3: Cross multiply
1,172,888.68x = 1,618,596.26 × 636,348.52 - Step 4: Simplify right side
1,172,888.68x = 1,029,991,334,528.54 - Step 5: Solve for x
x = 1,029,991,334,528.54/1,172,888.68 - Step 6: Final answer
x = 878,166.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.